Added actions/cache@v3 to cache Poetry and pip dependencies across
workflow runs. This significantly speeds up CI/CD by avoiding
full reinstallation when poetry.lock hasn't changed.
Cache strategy:
- Cache key based on OS and poetry.lock hash
- Caches ~/.cache/pypoetry and ~/.cache/pip
- Falls back to OS-specific cache if exact match not found
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
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